Question

Maximum likelihood estimator at the receiver uses only NLOS signals.

(a) True

(b) False

This question was posed to me in unit test.

I would like to ask this question from Environment Awareness in chapter Location and Environment Awareness in Cognitive Radio of Cognitive Radio

Answer 1

The correct answer is (b) False

For explanation I would say: Cramer Roa lower bound (CRLB) at the receiver is achieved by using maximum a posteriori and maximum likelihood estimator. Maximum a posteriori uses LOS and NLOS signals to achieve CRLB while maximum likelihood uses only LOS signals.